R3 header fit mystery

Wrong holes in the motor mounts? Different motor mounts (thinner R-3 vs standard)? Paul Johnson

Please excuse me if this insults your intelligence, but you did get all the motor mounts in the right holes when you dropped the engine in, yes? Everything should be offset to the passenger side, AFAIR.

nate

fits:

I don't know the answer to that one but have a big tip on another problem. Reach up inside the outlet of the headers as far as your finger will reach and make sure that divider is straight. Mine had a core shift and there was

Pat, can the arm turned upside down? Stud in from the top instead of the bottom?

Does the transmission mount ( Supposing automatic) have that large spacer between the mount and frame?

there's a spacer between the mount and frame?

SilverStude wrote:

Well, on the GT Hawk and I believe the Stude Avanti, the drivers side Powershift trans mount has a thick, (maybe 3/4") steel spacer, inserted between the crossmember and the bottom of the trans mount. It's there to jack something up..

On an automatic, yes. Part number 532427 1/2" thick, goes between trans mount and x-member on driver's side. Late parts book actually lists an additional 1/4" spacer on the *passenger* side for non-C/K V-8s but I haven't personally pulled an engine/trans from an automatic Lark so I can't verify that. If it's a 4-speed there are other spacers used between mount and bellhousing but the parts book does not list the thicknesses, although I believe that this was discussed on the group a while back when I was trying to determine the proper thicknesses for a

If you need a spacer and don't have one, I don't see why a stack of hardened washers wouldn't be an acceptable alternative, just a little harder to install.

good luck,

nate